Plant Structure What is the source of free energy (ΔG) for moving protons out of mitochondria against their concentration and electrical gradients? ATP Glycolysis The redox reactions of electron transport Creatine phosphate ATP Glycolysis The redox reactions of electron transport Creatine phosphate ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria? Both have their own ribosomes Both strongly resemble prokaryotes, especially in size Both have their own DNA Both can live and function independently of the cell Both have their own ribosomes Both strongly resemble prokaryotes, especially in size Both have their own DNA Both can live and function independently of the cell ANSWER DOWNLOAD EXAMIANS APP
Plant Structure If complex III were incorporated into an artificial lipid vesicle in order to demonstrate it's proton translocating ability in isolation, which of the following would be an appropriate electron donor? Cytochrome c oxidase Cytochrome c red Ubiquinol (UQH2) Cytochrome c peroxidase Cytochrome c oxidase Cytochrome c red Ubiquinol (UQH2) Cytochrome c peroxidase ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which is not true about a photon? It is trapped by photosynthetic unit It donates electron to reduce carbon dioxide to glucose The shorter the wavelength, the greater the energy of the photons It is a packet of light energy It is trapped by photosynthetic unit It donates electron to reduce carbon dioxide to glucose The shorter the wavelength, the greater the energy of the photons It is a packet of light energy ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following experimental results does not support Mitchell's chemiosmosis theory? An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium Electron transport in isolated mitochondria was shown to result in acidification of the medium An artificial proton gradient across the inner mitochondrial membrane drives ATP synthesis in the absence of electron transport Addition of dinitrophenol to isolated mitochondria was shown to inhibit electron transport, but had no effect on ATP synthesis Addition of dinitrophenol to isolated mitochondria during electron transport was shown to inhibit acidification of the medium Electron transport in isolated mitochondria was shown to result in acidification of the medium ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Chemical energy is supplied to eukaryotic cells by mitochondria only mitochondria and ribosomes mitochondria and chloroplasts chloroplasts and golgi complexes mitochondria only mitochondria and ribosomes mitochondria and chloroplasts chloroplasts and golgi complexes ANSWER DOWNLOAD EXAMIANS APP
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